EP4525795A1 - Phacoémulsification et manchons i/a - Google Patents

Phacoémulsification et manchons i/a

Info

Publication number
EP4525795A1
EP4525795A1 EP23728867.5A EP23728867A EP4525795A1 EP 4525795 A1 EP4525795 A1 EP 4525795A1 EP 23728867 A EP23728867 A EP 23728867A EP 4525795 A1 EP4525795 A1 EP 4525795A1
Authority
EP
European Patent Office
Prior art keywords
irrigation
sleeve
ports
port
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23728867.5A
Other languages
German (de)
English (en)
Inventor
James Gerg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson and Johnson Surgical Vision Inc
Original Assignee
Johnson and Johnson Surgical Vision Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson and Johnson Surgical Vision Inc filed Critical Johnson and Johnson Surgical Vision Inc
Publication of EP4525795A1 publication Critical patent/EP4525795A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • A61M1/774—Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0612—Eyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means

Definitions

  • This invention generally relates to surgical devices used in ocular surgery and more specifically to an irrigation sleeve used with a handpiece and needle tip in ocular surgery.
  • Phacoemulsification and irrigation/aspiration (I/A) handpieces facilitate removal of the natural lens during cataract surgery.
  • a phacoemulsification handpiece and/or an IA handpiece may be coupled to an irrigation source and an aspiration pump.
  • the handpiece may include a needle tip and an irrigation sleeve, each comprising a distal tip.
  • the distal tip of the irrigation sleeve may comprise one or more irrigation ports, which is coupled with an irrigation source via an irrigation line, and an aspiration port at the distal tip of the needle, which is coupled with an aspiration pump via an aspiration line.
  • Fluid from the irrigation source which is typically an elevated bottle of balanced salt solution, is irrigated into the eye via the irrigation line and the one or more irrigation ports, and the irrigation fluid and emulsified cataractic lens material are aspirated from the eye by the aspiration pump via the aspiration port at the distal tip of the needle and the aspiration line.
  • the irrigation sleeve is added to the distal end of the handpiece, covering at least a portion of a needle of the phacoemulsification handpiece (thus, exposing the distal tip of the needle). A distal portion of the needle and the sleeve are then inserted through an incision in the cornea of the eye to reach the cataractic lens.
  • irrigation ports may catch on smaller incisions. As such, it would be desirable to have irrigation ports with reduced potential for snagging on incisions. It would be further desirable to have an irrigation sleeve with increased irrigation outflow to optimize chamber stability of the eye.
  • Irrigation sleeves which maximize irrigation outflow and have a reduced potential for snagging on incisions are disclosed. More particularly, disclosed irrigation sleeves comprise webbed irrigation ports, crossed irrigation ports, axially stretched irrigation ports, and/or centering dimples. The disclosed irrigation sleeves may further provide optimal irrigation outflow for maintaining chamber stability of the eye.
  • An irrigation sleeve comprising at least one pair of irrigation ports located on a distal portion of the irrigation sleeve.
  • the at least one pair of irrigation ports may be separated by a web of material.
  • a width of the web may be less than 0.012 inches or less than 1.5 times a wall thickness of the irrigation sleeve.
  • An irrigation sleeve comprising at least two pairs of irrigation ports located on a distal portion of the irrigation sleeve is disclosed. Each pair of irrigation ports may be located opposite each other on the irrigation sleeve.
  • An irrigation sleeve comprising at least two irrigation ports located on a distal portion of the irrigation sleeve. At least one of the at least two irrigation ports may comprise an axial length along a longitudinal axis of the irrigation sleeve and a diametrical width normal to the longitudinal axis. At least one of the at least two irrigation ports may have a ratio of the axial length to the diametrical width of 3:2 or more.
  • An irrigation sleeve comprising at least two irrigation ports located on a distal portion of the irrigation sleeve.
  • the at least two dimples may be located on an inner surface of the irrigation sleeve.
  • Each dimple may be located between adjacent irrigation ports.
  • the irrigation sleeve may comprise three dimples.
  • An irrigation sleeve comprising at least three irrigation ports located on a distal portion of the irrigation sleeve. At least one irrigation port of the at least three irrigation ports may be non-rotationally symmetric relative to at least one of the other at least three irrigation ports. In some embodiments, at least one irrigation port of the at least three irrigation ports may comprise either a different port shape, port size, or axial position relative to the distal tip.
  • FIG. 1 is a diagram of a phacoemulsification handpiece known in the art
  • FIG. 2A is a perspective view of irrigation sleeve known in the art
  • FIG. 2B is a perspective view of another irrigation sleeve known in the art.
  • FIG. 2C is a side section view of an irrigation sleeve known in the art covering a portion of a phacoemulsification needle
  • FIGs. 3A and 3B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIGs. 4A and 4B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIGs. 5A and 5B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIGs. 6A and 6B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIGs. 7A and 7B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIGs. 8A and 8B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIGs. 9A and 9B are a perspective view and a side view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIG. 10 is a side view of an irrigation sleeve in accordance with the present disclosure
  • FIG. 11 is a side view of an irrigation sleeve in accordance with the present disclosure
  • FIG. 12 is a side view of an irrigation sleeve in accordance with the present disclosure.
  • FIG. 13 A is a perspective view of an FA handpiece with a curved tip known in the art.
  • Fig. 13B is a perspective view of an I/A handpiece with a curved tip and irrigation sleeve known in the art
  • FIGs. 14A and 14B are a bottom view and a perspective view, respectively, of an irrigation sleeve in accordance with the present disclosure
  • FIG. 15 is an illustration of the irrigation sleeve of FIGs. 14A and 14B encompassing a tip and within an anterior chamber of a patient’s eye;
  • FIG. 16A is a side view of an irrigation sleeve in accordance with the present disclosure.
  • FIG. 16B is a side sectional view of the irrigation sleeve of FIG. 16A.
  • Irrigation sleeves in accordance with the present disclosure may be made from any type of material, including, but not limited to, silicone, plastic, and/or rubber, and different sections may be made from different materials.
  • the irrigations sleeve is made from silicone rubber.
  • the irrigation sleeves may be manufactured using any manufacturing process.
  • silicone irrigation sleeves may be manufactured using silicone gum stock transfer molding and/or silicone liquid injection molding.
  • the irrigation and/or aspiration ports of irrigation sleeves in accordance with the present disclosure may be formed using various methods, including but not limited to punching, skiving, drilling, laser cutting, and/or molding.
  • FIG. 1 is a diagram of a phacoemulsification handpiece 10 as known in the art.
  • phacoemulsification handpiece 10 may be coupled with an irrigation source and an aspiration pump (not shown) via the proximal end of the handpiece.
  • the handpiece 10 may include an irrigation sleeve 15.
  • FIGs. 2A and 2B are diagrams of irrigation sleeves 15 known in the art.
  • FIG. 2C is a diagram of an irrigation sleeve 15 known in the art covering a portion of a phacoemulsification needle 19.
  • the irrigation sleeves 15 may comprise a distal portion 16.
  • the distal portion 16 comprises irrigation port 17, which is coupled to an irrigation source via an irrigation line (not shown), and a distal end port or distal opening 18, which substantially surrounds the phacoemulsification needle 19, as shown in FIG. 2C.
  • fluid from the irrigation source which is typically an elevated bottle of balanced salt solution, but may also be supplied via pressurized infusion or a pump, is irrigated into the eye 1 via the irrigation line and irrigation port 17, and the irrigation fluid and emulsified cataractic lens material are aspirated from the eye 1 by the aspiration pump via the phacoemulsification needle and the aspiration line.
  • irrigation sleeve 15 is added to the distal end of the handpiece, covering at least a portion of the needle (thus, exposing the distal tip of the needle), providing an irrigation pathway extending from the irrigation source to the irrigation port 17 via the irrigation line.
  • the needle and a portion of the sleeve are then inserted through an incision in the cornea of the eye to reach the cataractic lens.
  • irrigation sleeves for phacoemulsification and FA handpieces are disclosed. Specifically, irrigation sleeves with reduced potential for catching the irrigation port on the incision and with increased irrigation outflow are disclosed. The manufacturing, materials and design of the irrigation sleeves are configured to optimize the amount of outflow while minimizing corneal snagging.
  • FIGs. 3 A and 3B illustrate an irrigation sleeve 40 with webbed ports, according to an embodiment.
  • An irrigation sleeve in accordance with the present disclosure may comprise a plurality of irrigation ports and a plurality of webs.
  • irrigation sleeve 40 comprises a pair of irrigation ports 41a, 41b located opposite adjacent to each other on the same side of distal end of the irrigation sleeve 40.
  • the irrigation ports 41a, 41b are separated by a web 43.
  • the width of the web 43 i.e., the space between the arrows
  • the width of the web 43 is less than or equal to 1.5 times the thickness of a wall of the irrigation sleeve.
  • the width of web 43 (i.e., the space between the arrows) is no larger than the thickness of a wall of the irrigation sleeve. In other embodiments, the width of the web 43 is greater than or equal to the thickness of a wall of the irrigation sleeve. In some embodiments, the width of the web is less than or equal to about 0.012 inches. In some embodiments, the width of the web 43 is less than or equal to about 0.010 inches. In some embodiments, the width of the web 43 is less than or equal to about 0.006 inches. In some embodiments, the width of the web 43 is less than or equal to 1.5 times the thickness of a wall of the irrigation sleeve or less than or equal to 0.012 inches, whichever is smaller. In some embodiments, a strengthening agent and/or material may be added to one or more of the webs to increase the strength, thereby reducing the potential that the respective web will bow.
  • the web 43 is horizontal. However, in other embodiments, the web may be vertical or diagonal. The presence of the web 43 creates smaller irrigation ports, reducing the likelihood that a port will catch on an incision.
  • Irrigation sleeves in accordance with the present disclosure comprise irrigation ports which provide sufficient outflow.
  • the pair of irrigation ports 41a, 41b are provided.
  • Current irrigation sleeves comprise two, relatively larger ports. By providing a greater number of smaller irrigation ports, the same or greater outflow than irrigation ports of current irrigation sleeves may be achieved. A greater outflow may be beneficial, as it may prevent the need to use higher pressures.
  • irrigation ports are a half-circle shape.
  • the irrigation ports may be various shapes, including but not limited to rectangle, circle, oval, trapezoid, and the like.
  • FIGs. 4A and 4B illustrate an embodiment with irrigation sleeve 45 comprising a pair of irrigation ports 46a, 46b separated by web 47, where the pair of irrigation ports 46a, 46b are a rounded rectangular shape with a tapered side.
  • irrigation sleeve 45 may further have a second pair of irrigation ports 46c, 46d on another circumferential location on the distal end of sleeve 45.
  • FIGs. 5A and 5B illustrate an embodiment with irrigation sleeve 50 comprising a pair of irrigation ports 51a, 5b separated by web 52, where the irrigation ports are a circle shape.
  • irrigation sleeve 50 may further have a second pair of irrigation ports 51c, 5 Id on another circumferential location on the distal end of sleeve 50.
  • FIGs. 6A and 6B illustrate an irrigation sleeve 55 comprising two clusters of three irrigation ports located on opposite each other on the distal end of the irrigation sleeve 55.
  • one side of irrigation sleeve 55 has three irrigation ports 56a, 56b, 56c.
  • each cluster comprises three irrigation ports, more than three irrigation ports may make up a cluster.
  • the number of irrigation ports for each cluster, the total number of irrigation ports, and/or location of the one or more ports may be determine based on, including, but not limited to, the irrigation fluid outflow desired, the size of the ports, the shape of the ports, and/or the width of the webbing.
  • an irrigation sleeve in accordance with the present disclosure may comprise irrigation ports separated by webs that are horizontal, vertical, or diagonal, as discussed above.
  • the embodiment illustrated in FIGs. 6A and 6B comprises a first web 57a separating irrigation ports 56a and 56b, a second web 57b separating irrigation ports 56b and 56c, and a third web 57c separating irrigation ports 56a and 56c. Similar to the embodiments discussed above, the first web 57a is horizontal. The second web 57b and third web 57c, on the other hand, are diagonal.
  • irrigation ports 61a, 61b are separated by a vertical web 62.
  • an irrigation sleeve in accordance with the present disclosure may comprise irrigation ports of different sizes.
  • irrigation port 61a is smaller than 61b.
  • the different sizes may be used to achieve the desired outflow rate and direction.
  • the different sizes may also enable easy insertion of the sleeve into the eye through an incision.
  • Irrigation ports in accordance with the present disclosure may be created using punches after an irrigation sleeve has been manufactured using a technique such as injection molding. Some embodiments may be manufactured using custom punches. Some embodiments, such as the embodiment illustrated in FIGs. 5A and 5B, may be manufactured using punches that are currently used in the art. An irrigation sleeve with irrigation ports in accordance with the present disclosure, such as those discussed above, may be created using a technique such as laser cutting. [0048] Irrigation sleeves in accordance with the present disclosure may comprise more than two irrigation ports, as discussed above. In some embodiments, the irrigation sleeve comprises at least three irrigation ports.
  • the irrigation ports may comprise four crossed ports.
  • irrigation sleeve 65 comprises four crossed irrigation ports 66a, 66b, 66c, 66d, i.e., two pairs (66a, 66d and 66b, 66c) of irrigation ports which are directly opposite each other.
  • the four crossed ports may be formed with only two punching steps and therefore efficient from a manufacturing standpoint.
  • the four crossed irrigation ports 66a, 66b, 66c, 66d are separated by 90 degrees.
  • the four crossed irrigation ports 66a, 66b, 66c, 66d are separated by a distance of 0.020 inches.
  • the crossed irrigation ports may have a reduced size as compared to current two port irrigation sleeves to reduce the potential for catching on corneal tissue while passing through an incision.
  • the combined outflow of the four irrigation ports may be the same or greater than current irrigation sleeves with two standard-size ports.
  • irrigation sleeves in accordance with the present disclosure having more than two irrigation ports may provide sufficient outflow for maintaining chamber stability of the eye.
  • FIGs. 10-12 illustrate embodiments of irrigation sleeves comprising at least one irrigation port which are elongated in an axial direction and have a minimized diametrical width.
  • irrigation sleeve 75 comprises an axially stretched or elongated irrigation port 76.
  • the length of the irrigation port in the axial direction 77 is larger than the diametrical width 78 normal to the longitudinal axis.
  • the ratio of the length of the irrigation port in the axial direction to the diametrical width of the irrigation port is about 1.5: 1 or higher.
  • the ratio of the length of the irrigation port in the axial direction to the diametrical width of the irrigation port is about 3:2 or higher.
  • An irrigation sleeve in accordance with the present disclosure may comprise two or more axially elongated ports separated by a web.
  • irrigation sleeve 80 comprises axially elongated irrigation ports 81a, 81b separated by web 82. More particularly, the length of each irrigation port in the axial direction 83a, 83b is larger than the diametrical width 84a, 84b of each irrigation port.
  • An irrigation sleeve in accordance with the present disclosure may comprise crossed irrigation ports that are axially stretched.
  • irrigation sleeve 85 of FIG. 12 comprises four crossed irrigation ports 86 which are axially stretched. More particularly, the length of irrigation port in the axial direction 87 is larger than the diametrical width 88 of the irrigation port.
  • An irrigation sleeve with axially elongated ports may be of various shapes, as illustrated by FIGs. 10-12.
  • the irrigation sleeve 75 of FIG. 10 comprises a distal opening 79 and irrigation ports that are a rounded rectangular shape
  • irrigation sleeve 80 of FIG. 11 comprises a distal opening 90 and irrigation ports that are a rounded rectangular shape with a tapered side
  • irrigation sleeve 85 of FIG. 12 comprises a distal opening 89 and irrigation ports that are a teardrop shape with two tapered sides.
  • a larger cross section of an opening is provided toward a proximal end of the irrigation sleeve.
  • the broader portion of the irrigation port is provided toward the proximal end of the irrigation sleeve and the narrower portion of the irrigation port is provided toward the distal end of the irrigation sleeve.
  • one or more irrigation ports are narrower in any dimension than the distal opening, for example, distal openings 79, 90, and 89 of FIGs. 10, 11, and 12, respectively, of the irrigation sleeve. In further embodiments, one or more irrigation ports are no more than 90% of the distal opening in at least one dimension, or the smallest dimension.
  • irrigation outflow of the irrigation ports is sufficient to maintain chamber stability of the eye.
  • one or more irrigation ports of the irrigation sleeve or a portion of the irrigation port may be of smaller size than a needle tip used in conjunction with the irrigation sleeve to prevent the needle tip from inadvertently going through an irrigation port when irrigation sleeve is added to the distal end of the handpiece.
  • FIGs. 13A and 13B illustrate an I/A handpiece 100 with a curved needle tip 101 that is known in the art.
  • a curved phacoemulsification tip or FA tip may be useful in certain ocular procedures.
  • curved I/A tips may maximize access to the sub-incisional cortex.
  • current irrigation sleeves, such as irrigation sleeve 110 may not symmetrically conform to a curved phacoemulsification tip or I/A tip, as illustrated in FIG. 13B.
  • an irrigation sleeve in accordance with the present disclosure may comprise two or more dimples on an inner surface of the sleeve.
  • the dimples may maintain a centering alignment to contour both straight and curved phacoemulsification tips and I/A tips.
  • FIGs. 14A and 14B illustrate an embodiment wherein irrigation sleeve 90 comprises two dimples 92 located on an inner surface of the sleeve.
  • irrigation sleeve 90 is shown with two dimples, an irrigation sleeve in accordance with the present disclosure may comprise more than two dimples.
  • the irrigation sleeve comprises three dimples located on an inner surface of the sleeve to optimize centration between the inner surface of the sleeve and an outer surface profile of the needle tip.
  • the dimples are located between the two irrigation ports 91.
  • the dimples 92 are located midway between two irrigation ports 91.
  • dimples 92 are rotationally aligned 90 degrees from the central axis of the irrigation ports 91 to guide fluid flow toward the irrigation ports 91.
  • the irrigation sleeve may comprise three dimples in various orientations. In some embodiments, each of the three dimples are located between irrigation ports. For example, in some embodiments, two dimples may be located between two irrigation ports on a first side and one dimple may be located between the two irrigation ports on a second side opposite the first side. In some embodiments, the irrigation sleeve may comprise three dimples separated by 120 degrees.
  • the dimples 92 are a spherical shape.
  • an irrigation sleeve in accordance with the present disclosure may comprise dimples of various shapes, such as an ovoidal shape.
  • FIG. 15 illustrates irrigation sleeve 90 shown within the anterior chamber of the patient's eye 1 and encompassing a straight I/A tip 94.
  • the dimples 92 may center the irrigation sleeve 90 on the tip 94, thereby reducing the potential of the sleeve snagging on the corneal incision and ensuring uniform fluid flow.
  • irrigation sleeve 90 is shown for use with a straight I/A tip 94, irrigation sleeve 90 may be used with a curved I/A tip or a straight or curved phacoemulsification tip.
  • FIGs. 16A and 16B illustrate a curved irrigation sleeve 95 having a radius of curvature 96 in accordance with the present disclosure.
  • the curved irrigation sleeve 95 may comprise curves 96a, 96b.
  • the radius of the curves 96a, 96b may be configured to accommodate a curved phacoemulsification or I/A tip 98.
  • the curved irrigation sleeve 95 may further comprise a plurality of dimples 97a, 97b on an inner surface of the sleeve.
  • irrigation sleeve 95 is shown with two dimples 97a, 97b, an irrigation sleeve in accordance with the present disclosure may comprise more than two dimples.
  • the dimples 97a, 97b may maintain a centering alignment to reduce the potential of the sleeve snagging on the corneal incision and ensuring uniform fluid flow.
  • the dimples 97a, 97b may be located at the midpoint of the curves 96a, 96b, respectively.
  • the dimples 97a, 97b are a spherical shape. In other embodiments, the dimples may be any number of various different shapes, such as an ovoidal shape.
  • the web portion may be made thicker than the rest of the irrigation sleeve to increase the strength of the web, thereby reducing the potential that the web will bow, and/or create a dimple for alignment of the sleeve around the phacoemulsification and/or FA needle tip, which may help to reduce the potential of the sleeve ports snagging on the corneal incision and provide uniform fluid flow toward the irrigation ports.
  • a strengthening agent and/or material may be added to the web.
  • a strengthening agent and/or materials may also be added without a thickening of the web such that a strengthened web is the same thickness as the rest of the irrigation sleeve.
  • An irrigation sleeve comprising at least one set of irrigation ports located on a distal portion of the irrigation sleeve, the at least set pair of irrigation ports comprising a first port and a second port, wherein the at least one set of irrigation ports are located on a single side of the irrigation sleeve and separated by a web of material.
  • the irrigation sleeve of any one of examples 1-2 further comprising: a second set of irrigation ports located on the distal portion of the irrigation sleeve, wherein the first set of irrigation ports and the second set of irrigation ports are located opposite each other on the irrigation sleeve.
  • Example 4 [0076] The irrigation sleeve of any one of examples 1-3, wherein the first set of irrigation ports and the second set of irrigation ports have a same size or have different sizes; and wherein the first set of irrigation ports and the second set of irrigation ports have a same shape or a different shape.
  • An irrigation sleeve comprising: at least two irrigation ports located on a distal portion of the irrigation sleeve; and at least two dimples located on an inner surface of the irrigation sleeve, each dimple being located between adjacent irrigation ports.
  • An irrigation sleeve comprising: at least three irrigation ports located on a distal portion of the irrigation sleeve; wherein at least one irrigation port of the at least three irrigation ports is non-rotationally symmetric relative to at least one of the other at least three irrigation ports.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Ophthalmology & Optometry (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Hematology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Anesthesiology (AREA)
  • Surgery (AREA)
  • Pulmonology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne des manchons d'irrigation qui maximisent l'écoulement de l'irrigation et ont un risque réduit d'accrochage sur les incisions. Plus particulièrement, les manchons d'irrigation divulgués comprennent des orifices d'irrigation en réseau, des orifices d'irrigation croisés, des orifices d'irrigation allongés axialement et/ou des alvéoles de centrage. Les manchons d'irrigation divulgués peuvent en outre fournir un débit d'irrigation optimal pour maintenir la stabilité de la chambre oculaire.
EP23728867.5A 2022-05-20 2023-05-09 Phacoémulsification et manchons i/a Pending EP4525795A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263365080P 2022-05-20 2022-05-20
PCT/IB2023/054808 WO2023223145A1 (fr) 2022-05-20 2023-05-09 Phacoémulsification et manchons i/a

Publications (1)

Publication Number Publication Date
EP4525795A1 true EP4525795A1 (fr) 2025-03-26

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US (1) US20230372601A1 (fr)
EP (1) EP4525795A1 (fr)
WO (1) WO2023223145A1 (fr)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186714A (en) * 1992-05-18 1993-02-16 Yab Revo-Tech Inc. Multifunctional surgical instrument
WO1996038091A1 (fr) * 1995-06-02 1996-12-05 Surgical Design Corporation Piece a main, manchon et embout de phacoemulsification
US5755700A (en) * 1995-07-27 1998-05-26 Michiel S. Kritzinger Corneal irrigation cannula and method of using
US6196989B1 (en) * 1998-06-04 2001-03-06 Alcon Laboratories, Inc. Tip for liquefracture handpiece
US20030050603A1 (en) * 2001-09-12 2003-03-13 Todd Erik F. Cannula that provides bi-directional fluid flow that is regulated by a single valve
US7601136B2 (en) * 2004-07-20 2009-10-13 Takayuki Akahoshi Infusion sleeve
US10207045B2 (en) * 2008-06-26 2019-02-19 Surgical Design Corporation Surgical handpiece with disposable concentric lumen work tip
US8267891B2 (en) * 2008-12-18 2012-09-18 Alcon Research, Ltd. Gilled phacoemulsification irrigation sleeve
US8398578B1 (en) * 2009-06-05 2013-03-19 Christine Lydie Zolli Capsule friendly tips for phacoemulsification and for irrigation/aspiration
US20150038894A1 (en) * 2013-08-02 2015-02-05 Alex Urich Occlusion-activated heat supression infusion sleeve
EP3417821B1 (fr) * 2013-10-28 2021-06-30 St. Jude Medical, Cardiology Division, Inc. Conceptions de cathéter d'ablation comportant des capacités de diagnostic améliorées
US9610193B2 (en) * 2013-12-05 2017-04-04 Novartis Ag Forward flow impeding infusion sleeve and associated systems and methods
US20150297344A1 (en) * 2014-04-21 2015-10-22 Arvind Saini Irrigating intraocular lens rotators and related methods
US11179147B2 (en) * 2016-10-14 2021-11-23 Michael Jerome Designs, LLC Devices for intraocular surgery
US11602617B2 (en) * 2019-04-18 2023-03-14 Michael Bonnette Pumpless thrombectomy system
CA3152443A1 (fr) * 2019-11-04 2021-05-14 James Y. Chon Manchon d'irrigation pour interventions ophtalmiques

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